510(k) · Cleared
ClearedCentury Alloy
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Dentsply Intl. · EJJ Alloy, Amalgam
Cleared on Dec 17, 1997 as substantially equivalent to K801690 (L.D. Caulk Co., 1980) after a 54-day review. Its family tree reaches back 1 generation to 1980.
- Decided
- Dec 17, 1997
- Review
- 54 days
- Class
- Class II
- Product code
- EJJ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K801690 (1980). No later device cites it as a predicate yet.
- Root · 1 generation backK801690 ValiantL.D. Caulk Co. · 1980
- This deviceK974035 Century AlloyDentsply Intl. · 1997
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K801690 | Valiant | L.D. Caulk Co. | 1980 | — |
| 0 (this device) | K974035 | Century Alloy | Dentsply Intl. | 1997 | — |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in EJJ? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
- Candidate predicates for a device like this, rankedin the report
- Recall history across each candidate’s familyin the report
What was it cleared against? (2)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K801690 | ValiantSummary page 1…hn DATE PREPARED: October 22, 1997 TRADE OR PROPRIETARY NAME: 21st CENTURY ALLOY CLASSIFICATION NAME: 872.3050 - amalgam alloy PREDICATE DEVICE: Valiant® Amalgam Alloy K801690 Dispersalloy® Dispersed Phase Alloy Pre-1977 DEVICE DESCRIPTION AND INTENDED USE: 21st CENTURY ALLOY is a lathe cut, silver-base… | 1980 |
| * | — | Dispersalloy® Dispersed Phase Alloy Named without a submission number |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- Its one ancestor has no recall.
How does its category compare?
All EJJ devicesEJJ Alloy, Amalgam: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · EJJ
FDA has decided no EJJ device since 2007.
Median 510(k) review, days · EJJ
Too few EJJ 510(k)s in any year since 2007 to give a median.
Recalls per year · EJJ
1in 2023
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · EJJ
2in 2021
MAUDE reports naming product code EJJ, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 49 |
| 2008 | 0 | — | 0 | 9 |
| 2009 | 0 | — | 0 | 5 |
| 2010 | 0 | — | 0 | 22 |
| 2011 | 0 | — | 0 | 8 |
| 2012 | 0 | — | 0 | 1 |
| 2013 | 0 | — | 0 | 1 |
| 2014 | 0 | — | 0 | 5 |
| 2015 | 0 | — | 0 | 4 |
| 2016 | 0 | — | 0 | 2 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 3 |
| 2019 | 0 | — | 0 | 1 |
| 2020 | 0 | — | 0 | 1 |
| 2021 | 0 | — | 0 | 2 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 1 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
21ST CENTURY ALLOY is a dental alloy designed for stress-bearing
Class 1 and Class 2 restorations.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K974035 · printed Nov 6, 2026
Cite this page
510(k) Report. “K974035: Century Alloy.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K974035
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026